added simpleDS for data transfer, and tests
See whether the Git plugin of Netbeans works
Revert "See whether the Git plugin of Netbeans works"

This reverts commit eb50ef7fad269ed3468cdbe68d1aeea8166e4760.
Test the egit plugin of eclipse, netbeans git sucks
final test I think
Implemented a  filter, parsing and frequency counting. and a simple test. While the filter part needs much to do.
data store and search
just test
s
frame
DS basic
Merge branch 'master' of https://github.com/rushimg/ec504_fp_group7
Improved features to graph